TW200519887A - Read equalizer for a data storage system - Google Patents
Read equalizer for a data storage systemInfo
- Publication number
- TW200519887A TW200519887A TW093125629A TW93125629A TW200519887A TW 200519887 A TW200519887 A TW 200519887A TW 093125629 A TW093125629 A TW 093125629A TW 93125629 A TW93125629 A TW 93125629A TW 200519887 A TW200519887 A TW 200519887A
- Authority
- TW
- Taiwan
- Prior art keywords
- linear equalizer
- read signal
- data storage
- storage system
- predefined shape
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10009—Improvement or modification of read or write signals
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
- G11B2020/1288—Formatting by padding empty spaces with dummy data, e.g. writing zeroes or random data when de-icing optical discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2541—Blu-ray discs; Blue laser DVR discs
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Optical Recording Or Reproduction (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Digital Magnetic Recording (AREA)
Abstract
A device for scanning a track on a record carrier for reading information has a head for generating a read signal. Marks in the track have a number of different shapes for representing the information. The device processes the read signal by a combination of a linear equalizer (81) and a non-linear equalizer (89). The linear equalizer (81) is arranged for equalizing based on a mark having a single predefined shape, and the non-linear equalizer (89) is arranged for reducing inter symbol interference in the read signal for marks having a different shape then said predefined shape. The inter symbol interference remaining in the read signal is effectively reduced by the non-linear equalizer (89) because it is optimized based on the fact that said linear equalizer (81) is optimized on said single predefined shape.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03103229 | 2003-08-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
TW200519887A true TW200519887A (en) | 2005-06-16 |
Family
ID=34259216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW093125629A TW200519887A (en) | 2003-08-27 | 2004-08-26 | Read equalizer for a data storage system |
Country Status (7)
Country | Link |
---|---|
US (1) | US20060256699A1 (en) |
EP (1) | EP1661132A1 (en) |
JP (1) | JP2007503665A (en) |
KR (1) | KR20060132548A (en) |
CN (1) | CN1842859A (en) |
TW (1) | TW200519887A (en) |
WO (1) | WO2005022532A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5212260B2 (en) * | 2009-05-28 | 2013-06-19 | 株式会社Jvcケンウッド | Equalizer, equalization method, and program |
US8977139B2 (en) * | 2012-10-29 | 2015-03-10 | Finisar Corporation | Integrated circuits in optical receivers |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0580864B1 (en) * | 1992-02-14 | 1998-11-25 | Sony Corporation | Data recording medium, data recording apparatus, data reproducing apparatus and data recording/reproducing apparatus |
JPH0677767A (en) * | 1992-08-26 | 1994-03-18 | Sony Corp | Non-linear canceler |
JPH07169055A (en) * | 1993-12-15 | 1995-07-04 | Hitachi Ltd | Optical disk device and optical disk |
JPH10106158A (en) * | 1996-09-30 | 1998-04-24 | Toshiba Corp | Disk storage device and waveform equalizing circuit to be applied to the device |
JP3781911B2 (en) * | 1999-01-07 | 2006-06-07 | 株式会社日立製作所 | Information reproducing method and apparatus |
US6377529B1 (en) * | 2000-06-01 | 2002-04-23 | Calimetrics, Inc. | Method for providing improved equalization for the reading of marks on optical data-storage media |
EP1443512A1 (en) * | 2003-01-21 | 2004-08-04 | Thomson Licensing S.A. | Electronic circuit for decoding a read signal from an optical storage medium |
-
2004
- 2004-08-09 KR KR1020067003768A patent/KR20060132548A/en not_active Application Discontinuation
- 2004-08-09 JP JP2006524476A patent/JP2007503665A/en active Pending
- 2004-08-09 WO PCT/IB2004/051425 patent/WO2005022532A1/en not_active Application Discontinuation
- 2004-08-09 CN CNA2004800247333A patent/CN1842859A/en active Pending
- 2004-08-09 EP EP04744767A patent/EP1661132A1/en not_active Withdrawn
- 2004-08-09 US US10/569,182 patent/US20060256699A1/en not_active Abandoned
- 2004-08-26 TW TW093125629A patent/TW200519887A/en unknown
Also Published As
Publication number | Publication date |
---|---|
US20060256699A1 (en) | 2006-11-16 |
KR20060132548A (en) | 2006-12-21 |
JP2007503665A (en) | 2007-02-22 |
CN1842859A (en) | 2006-10-04 |
EP1661132A1 (en) | 2006-05-31 |
WO2005022532A1 (en) | 2005-03-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
UA65609C2 (en) | Data carrier a device for reading data from the carrier | |
EP1385166A3 (en) | Data recording medium, data reproducing method and reproducing device | |
AU2003265042A1 (en) | Method and device for recording information on a record medium, record medium containing information, and method and device for reading information from a record medium" | |
TWI256039B (en) | Information recording medium, recording apparatus and method, reproducing apparatus and method | |
TW200623051A (en) | Method and apparatus for acquiring an index mark | |
TW200601279A (en) | Recording medium with segment information thereon and apparatus and methods for forming, recording, and reproducing the recording medium | |
TW200606896A (en) | Recording medium, method for recording control information in the recording medium, and method and apparatus for recording/reproducing data in/from the recording medium using the same | |
MY138129A (en) | Information storage medium and method and apparatus for recording and / or reproducing pointing information | |
EP1627387A4 (en) | Apparatus and method for recording and/or reproducing data on an information storage medium using padding information, and the information storage medium | |
TWI346941B (en) | A recording media, method of configuring control information thereof, method for recording or reproducing data using the same, and apparatus thereof (2) | |
TW200501121A (en) | Information storage medium and method and apparatus for recording and/or reproducing data | |
MY139880A (en) | Information recording medium, integrated circuit, recording/playback apparatus, computer program, and information recording/playback method | |
TW200606945A (en) | Information carrier, and system for positioning such an information carrier in a reading and/or writing apparatus | |
EP1351241A3 (en) | Reproducing method, reproducing apparatus, recording method, and recording apparatus | |
TW200519887A (en) | Read equalizer for a data storage system | |
SG129233A1 (en) | Method and apparatus for recording data on opticalrecording medium | |
DE60238360D1 (en) | Record carrier and device for scanning the record carrier | |
MY144411A (en) | Method of recording information on and/or reproducing information from information storage medium including user data area having first sync patterns and additional data area having second and third sync patterns different from each other and from the first sync patterns | |
EG23418A (en) | Record carrier and apparatus for scanning the record carrier | |
MXPA02011273A (en) | Record carrier and apparatus for scanning the record carrier. | |
YU47403A (en) | Record carrier and apparatus for scanning the record carrier | |
MY146178A (en) | Record carrier comprising an additional sync-color pattern and method and device for use with such record carrier | |
TW200641835A (en) | Information recording medium and apparatus for recording information to or reproducing information from the same | |
TW200519888A (en) | Write strategy for a data storage system | |
TW200504732A (en) | Optical recording apparatus |